单项选择题
The English language is noted for the remarkable ( )and ( )of its vocabulary.
单项选择题 People use antonyms in idioms to ( ).
单项选择题 The ambiguity of the sentence, 'John ran the egg and spoon race', is due to ().
判断题 中国的半殖民地半封建社会以1840年的鸦片为起点,以1911年辛亥革命建立中华民国为终点。